Synonyms for gnarl Found 5 synonyms across 2 meanings for “gnarl”. something twisted and tight and swollen (noun) knot make complaining remarks or noises under one's breath (verb) murmurmuttergrumblecroak Explore Related Words Rhymes with gnarlSynonyms for knotSynonyms for murmurSynonyms for mutterSynonyms for grumbleSynonyms for croak Synonym Finder | Rhyme Finder | Poetry Editor